AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 1 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY000-01.01 PROJECT MBZ (LAND PROJECTS) EACH * $725.00 $34,800.00 48.00 STATE $725.00 $34,800.00 48.00000-01.02 PROJECT MBZ (MARINE PROJECTS) EACH * $6,666.67 $80,000.00 12.00 STATE $6,666.67 $80,000.00 12.00000-01.11 PROJECT MILEAGE (LAND PROJECTS) LIN MI * $1.17 $8,750.00 7,500.00 STATE $1.17 $8,750.00 7,500.00000-01.12 PROJECT MILEAGE (MARINE PROJECTS) LIN MI * $2.00 $3,000.00 1,500.00 STATE $2.00 $3,000.00 1,500.00000-01.21 DRILLRIGMOVG/SNBDYTIME(LAND PROJs HOUR * $75.00 $45,000.00 600.00 STATE $75.00 $45,000.00 600.00000-01.22 DRILLRIGMOVG/HLSETUP(MARINE PROJs BORING * $133.33 $20,000.00 150.00 STATE $133.33 $20,000.00 150.00000-01.31 SOIL AUGER BORINGS V.F. * $6.17 $148,000.00 24,000.00 STATE $6.17 $148,000.00 24,000.00000-01.32 WASH BORINGS (LAND & MARINE) V.F. * $8.33 $50,000.00 6,000.00 STATE $8.33 $50,000.00 6,000.00000-01.33 SOIL DRILLING & SAMPLING (LAND) V.F. * $8.75 $175,000.00 20,000.00 STATE $8.75 $175,000.00 20,000.00000-01.34 THINWL(SHELBY)TUBESMPLG(LAND&MRNE EACH * $20.00 $6,000.00 300.00 STATE $20.00 $6,000.00 300.00000-01.35 SOIL DRILLING & SAMPLING (MARINE) V.F. * $14.00 $84,000.00 6,000.00 STATE $14.00 $84,000.00 6,000.00000-01.36 ROCKDRILLING&SAMPLING(LAND&MARINE V.F. * $24.67 $296,000.00 12,000.00 STATE $24.67 $296,000.00 12,000.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 2 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY000-01.37 BOREHOLE GROUTING (LAND & MARINE) V.F. * $3.17 $17,100.00 5,400.00 STATE $3.17 $17,100.00 5,400.00000-01.40 WATER HAULING (LAND PROJECTS) DAY * $116.67 $28,000.00 240.00 STATE $116.67 $28,000.00 240.00000-01.50 BULLDOZER HOUR * $85.00 $51,000.00 600.00 STATE $85.00 $51,000.00 600.00000-01.60 TRAFFIC CONTROL SYSTEMS DAY * $600.00 $54,000.00 90.00 STATE $600.00 $54,000.00 90.00000-01.70 SITE RESTORATION INCIDENT * $433.33 $6,500.00 15.00 STATE $433.33 $6,500.00 15.00000-02.10 ATTERBERG LIMITS EACH * $36.50 $43,800.00 1,200.00 STATE $36.50 $43,800.00 1,200.00000-02.11 NATURAL MOISTURE CONTENT EACH * $3.50 $4,200.00 1,200.00 STATE $3.50 $4,200.00 1,200.00000-02.12 PARTICAL SIZE ANALYSIS EACH * $49.00 $58,800.00 1,200.00 STATE $49.00 $58,800.00 1,200.00000-02.13 SOIL CLASSIFICATION EACH * $7.50 $9,000.00 1,200.00 STATE $7.50 $9,000.00 1,200.00000-02.20 PROCTOR DENSITY EACH * $93.33 $14,000.00 150.00 STATE $93.33 $14,000.00 150.00000-02.21 CALIFORNIA BEARING RATIO EACH * $233.33 $21,000.00 90.00 STATE $233.33 $21,000.00 90.00000-02.30 pH EACH * $18.67 $5,600.00 300.00 STATE $18.67 $5,600.00 300.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 3 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY000-02.31 RESISTIVITY EACH * $30.67 $9,200.00 300.00 STATE $30.67 $9,200.00 300.00000-02.40 CONSOLIDATION COMPRESSION EACH * $200.00 $18,000.00 90.00 STATE $200.00 $18,000.00 90.00000-02.50 TRIAXIAL COMPRESSION (U-U) EACH * $370.00 $11,100.00 30.00 STATE $370.00 $11,100.00 30.00000-02.51 TRIAXIAL COMPRESSION (C-U) EACH * $503.33 $7,550.00 15.00 STATE $503.33 $7,550.00 15.00000-02.60 UNCONFINED COMPRESSION EACH * $29.33 $2,640.00 90.00 STATE $29.33 $2,640.00 90.00105M01 CNSTR STAKES,LINES AND GRADES LS * $338,500.00 $338,500.00 1.00 1 $110,666.67 $664,000.00 6.00 2 $200,663.80 $1,003,319.00 5.00 3 $102,889.51 $617,337.04 6.00 4 $47,900.00 $239,500.00 5.00 STATE $124,463.31 $2,862,656.04 23.00109-10.01 TRAINEE HOUR 1 $.80 $800.00 1,000.00 2 $.80 $3,200.00 4,000.00 3 $.80 $4,800.00 6,000.00 4 $.80 $2,400.00 3,000.00 STATE $.80 $11,200.00 14,000.00109M10.01 TRAINEE HOUR * $.80 $800.00 1,000.00 1 $.80 $800.00 1,000.00 2 $.80 $2,400.00 3,000.00 3 $.80 $1,024.00 1,280.00 STATE $.80 $5,024.00 6,280.00201-01.02 CLEARING ACRE 3 $2,000.00 $4,000.00 2.00 STATE $2,000.00 $4,000.00 2.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 4 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY201-05.10 VEGETATION REMOVAL (TYPE 1) SITE 3 $587.76 $24,686.00 42.00 STATE $587.76 $24,686.00 42.00201-05.11 VEGETATION REMOVAL (TYPE 2) SITE 3 $902.00 $8,118.00 9.00 STATE $902.00 $8,118.00 9.00201-05.12 VEGETATION REMOVAL (TYPE A) SITE 3 $1,361.00 $9,527.00 7.00 STATE $1,361.00 $9,527.00 7.00201M01 CLEARING AND GRUBBING LS * $578,845.00 $578,845.00 1.00 1 $166,142.86 $1,163,000.00 7.00 2 $372,167.33 $2,233,004.00 6.00 3 $163,383.33 $980,300.00 6.00 4 $89,136.67 $267,410.00 3.00 STATE $227,067.78 $5,222,559.00 23.00201M07.01 REMOVAL AND DSP BRUSH & TREES LS 3 $2,000.00 $2,000.00 1.00 4 $3,900.00 $3,900.00 1.00 STATE $2,950.00 $5,900.00 2.00202-02.01 REMOVL P (36"RCP)(S 46+80,96'RT) L.F. 3 $28.05 $4,235.00 151.00 4 $29.40 $3,175.50 108.00 STATE $28.61 $7,410.50 259.00202-02.02 REMOVAL PIPE (15"CMP,STA 56+76) L.F. 3 $83.57 $9,360.00 112.00 STATE $83.57 $9,360.00 112.00202-03 REMOVAL RIGID PVMT,SIDEWALK,ETC. S.Y. 1 $20.00 $1,020.00 51.00 2 $22.08 $3,710.00 168.00 3 $6.51 $12,743.80 1,957.00 4 $3.75 $49,250.06 13,149.00 STATE $4.35 $66,723.86 15,325.00202-03.01 REMOVAL OF ASPHALT PAVEMENT S.Y. 1 $1.71 $19,149.78 11,210.00 2 $15.00 $1,080.00 72.00 3 $1.27 $34,370.22 27,015.00 4 $2.00 $7,800.00 3,900.00 STATE $1.48 $62,400.00 42,197.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 5 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202-08.01 REMOVAL OF ENDWALLS EACH 2 $1,000.00 $1,000.00 1.00 3 $101.59 $1,727.00 17.00 4 $200.00 $200.00 1.00 STATE $154.05 $2,927.00 19.00202-08.10 REMOVAL CURB (IN FRONT GUARDRAIL) L.F. * $2.35 $5,087.75 2,165.00 2 $20.00 $2,300.00 115.00 3 $3.97 $1,251.25 315.00 4 $5.00 $3,785.00 757.00 STATE $3.71 $12,424.00 3,352.00202-08.15 REMOVL CRB&GTTR (RAINTR PARKWAY) L.F. 3 $1.00 $1,784.00 1,784.00 4 $3.32 $7,893.00 2,376.00 STATE $2.33 $9,677.00 4,160.00202-08.25 REMOVAL MEDIAN BARRIER WALL (32") L.F. 3 $98.00 $23,520.00 240.00 STATE $98.00 $23,520.00 240.00202-08.26 REMOVAL MEDIAN BARRIER WALL (51") L.F. 3 $115.00 $23,000.00 200.00 STATE $115.00 $23,000.00 200.00202-13 WATER WELL ABANDONMENT EACH 3 $500.00 $500.00 1.00 STATE $500.00 $500.00 1.00202M01 REMOVL STR AND OBSTRUCTIONS LS 2 $6,500.00 $13,000.00 2.00 3 $136,000.00 $272,000.00 2.00 4 $10,200.00 $10,200.00 1.00 STATE $59,040.00 $295,200.00 5.00202M02.01 R P(1500mm S30+024 SAM JENKINS RD m 1 $50.00 $1,100.00 22.00 STATE $50.00 $1,100.00 22.00202M02.02 REMOVL P (980x900mm)(STA 10+170) m 3 $75.00 $600.00 8.00 STATE $75.00 $600.00 8.00202M03 REMOVAL RIGID PVMT,SIDEWALK,ETC. m2 * $3.25 $23,868.00 7,344.00 2 $2.52 $170,944.00 67,914.00 3 $4.42 $13,325.56 3,012.00 STATE $2.66 $208,137.56 78,270.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 6 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M03.01 REMOVAL OF ASPHALT PAVEMENT m2 1 $1.00 $5,453.00 5,453.00 2 $.25 $12,008.00 48,032.00 3 $2.15 $4,641.60 2,154.00 4 $4.73 $49,309.45 10,423.00 STATE $1.08 $71,412.05 66,062.00202M04.01 REMOVAL OF STRUC(B 54-SR30-24.94) LS * $90,000.00 $90,000.00 1.00 1 $141,000.00 $423,000.00 3.00 2 $31,650.00 $126,600.00 4.00 3 $20,000.00 $20,000.00 1.00 4 $22,833.33 $68,500.00 3.00 STATE $60,675.00 $728,100.00 12.00202M04.02 R S(B54-SR30-24.44)(S 3+181.098) LS * $90,000.00 $90,000.00 1.00 2 $29,383.33 $88,150.00 3.00 STATE $44,537.50 $178,150.00 4.00202M04.03 REMOVAL OF STRUC(B 54-SR30-23.21) LS * $40,000.00 $40,000.00 1.00 2 $51,283.33 $153,850.00 3.00 STATE $48,462.50 $193,850.00 4.00202M04.04 REMOVAL OF STRUCTURES LS 1 $50,000.00 $50,000.00 1.00 2 $58,416.67 $175,250.00 3.00 STATE $56,312.50 $225,250.00 4.00202M04.05 REMOVAL OF STRUC(SIGN)(TRACT 57) LS 2 $550.00 $1,100.00 2.00 STATE $550.00 $1,100.00 2.00202M04.06 REMOVL STRUC(SZ 36"P)(STA 10+640) LS 2 $375.00 $750.00 2.00 STATE $375.00 $750.00 2.00202M04.07 REMOVL S(SGN FOOTERS)(TRACT 61) LS 2 $225.00 $450.00 2.00 STATE $225.00 $450.00 2.00202M04.08 REMOVL S(CATCH BASIN)(S 11+100) LS 2 $350.00 $700.00 2.00 STATE $350.00 $700.00 2.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 7 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M04.09 REMOVL S(MAILBX/COLUMNS)(TR 70) LS 2 $275.00 $550.00 2.00 STATE $275.00 $550.00 2.00202M04.10 REMOVL STRUC(SZ 42"P)(STA 11+100) LS 2 $300.00 $600.00 2.00 STATE $300.00 $600.00 2.00202M04.11 REMOVL S(SGN FOOTERS)(TRACT 143) LS 2 $200.00 $400.00 2.00 STATE $200.00 $400.00 2.00202M04.12 REMOVL STRUC(SZ 36"P)(STA 11+300) LS 2 $600.00 $600.00 1.00 STATE $600.00 $600.00 1.00202M04.13 REMOVL S(CATCH BASIN)(S 11+300) LS 2 $200.00 $200.00 1.00 STATE $200.00 $200.00 1.00202M04.14 RMVL S(DROP INLET)(S 0+510 SR-317 LS 2 $100.00 $100.00 1.00 STATE $100.00 $100.00 1.00202M04.15 R STRUC(SZ 36"P)(S 0+650 SR-317) LS 2 $250.00 $250.00 1.00 STATE $250.00 $250.00 1.00202M04.50 R S(1052x304x1825mm)(S 1+605.5) LS * $2,200.00 $2,200.00 1.00 1 $5,000.00 $5,000.00 1.00 2 $250.00 $500.00 2.00 3 $11,330.00 $22,660.00 2.00 STATE $5,060.00 $30,360.00 6.00202M04.51 REMOVL STRUC(BX CLV)(S.5+932.766) LS * $1,500.00 $1,500.00 1.00 1 $2,000.00 $2,000.00 1.00 2 $250.00 $250.00 1.00 STATE $1,250.00 $3,750.00 3.00202M04.52 REMOVL STRUC(BX CLV)(S.6+756.089) LS * $1,500.00 $1,500.00 1.00 1 $500.00 $500.00 1.00 2 $200.00 $200.00 1.00 STATE $733.33 $2,200.00 3.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 8 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M04.53 REMOVL STRUC(BX CLV)(S.7+253.759) LS * $1,500.00 $1,500.00 1.00 2 $200.00 $200.00 1.00 STATE $850.00 $1,700.00 2.00202M04.54 REMOVL STRUC(SZ 24"P)(STA 11+685) LS 2 $100.00 $100.00 1.00 STATE $100.00 $100.00 1.00202M04.55 R STR(18"P)(S 11+840 -12+374.905) LS 2 $6,000.00 $6,000.00 1.00 STATE $6,000.00 $6,000.00 1.00202M04.56 RS(SLT DRN)(S 11+820 -12+374.905) LS 2 $6,000.00 $6,000.00 1.00 STATE $6,000.00 $6,000.00 1.00202M04.57 RS(CNC MED BRR)(11+955-12+374.905 LS 2 $25,000.00 $25,000.00 1.00 STATE $25,000.00 $25,000.00 1.00202M06.01 REMOVAL BUILDINGS (TRACT NO. 2) LS 2 $280.52 $1,402.60 5.00 3 $83.33 $250.00 3.00 4 $1,300.00 $1,300.00 1.00 STATE $328.07 $2,952.60 9.00202M06.02 REMOVAL BUILDINGS (TRACT NO. 6) LS 2 $250.75 $1,003.00 4.00 3 $75.00 $150.00 2.00 4 $1,300.00 $1,300.00 1.00 STATE $350.43 $2,453.00 7.00202M06.03 REMOVAL BUILDINGS (TRACT NO. 151) LS 2 $375.75 $1,503.00 4.00 3 $75.00 $150.00 2.00 4 $1,200.00 $1,200.00 1.00 STATE $407.57 $2,853.00 7.00202M06.04 REMOVAL BUILDINGS (TRACT NO. 9) LS 2 $463.25 $1,853.00 4.00 3 $100.00 $100.00 1.00 4 $1,250.00 $1,250.00 1.00 STATE $533.83 $3,203.00 6.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 9 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M06.05 REMOVAL BUILDINGS (TRACT NO. 11) LS 2 $500.75 $2,003.00 4.00 3 $100.00 $100.00 1.00 4 $400.00 $400.00 1.00 STATE $417.17 $2,503.00 6.00202M06.06 REMOVAL BUILDINGS (TRACT NO. 11) LS 2 $1,625.75 $6,503.00 4.00 3 $100.00 $100.00 1.00 STATE $1,320.60 $6,603.00 5.00202M06.07 REMOVAL BUILDINGS (TRACT NO. 13) LS 2 $167.33 $502.00 3.00 STATE $167.33 $502.00 3.00202M06.08 REMOVAL BUILDINGS (TRACT NO. 17) LS 2 $600.67 $1,802.00 3.00 STATE $600.67 $1,802.00 3.00202M06.09 REMOVAL BUILDINGS (TRACT NO. 22) LS 2 $834.00 $2,502.00 3.00 STATE $834.00 $2,502.00 3.00202M06.10 REMOVAL BUILDINGS (TRACT NO. 23) LS 2 $500.67 $1,502.00 3.00 STATE $500.67 $1,502.00 3.00202M06.11 REMOVAL BUILDINGS (TRACT NO. 24) LS 2 $834.00 $2,502.00 3.00 STATE $834.00 $2,502.00 3.00202M06.12 REMOVAL BUILDINGS (TRACT NO. 25) LS 2 $400.67 $1,202.00 3.00 STATE $400.67 $1,202.00 3.00202M06.13 REMOVAL BUILDINGS (TRACT NO. 26) LS 2 $500.67 $1,502.00 3.00 STATE $500.67 $1,502.00 3.00202M06.14 REMOVAL BUILDINGS (TRACT NO. 32) LS 2 $267.33 $802.00 3.00 STATE $267.33 $802.00 3.00202M06.15 REMOVAL BUILDINGS (TRACT NO. 34) LS 2 $400.67 $1,202.00 3.00 STATE $400.67 $1,202.00 3.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 10 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M06.16 REMOVAL BUILDINGS (TRACT NO. 35) LS 2 $167.33 $502.00 3.00 STATE $167.33 $502.00 3.00202M06.17 REMOVAL BUILDINGS (TRACT NO. 36) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.18 REMOVAL BUILDINGS (TRACT NO. 37) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.19 REMOVAL BUILDINGS (TRACT NO. 38) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.20 REMOVAL BUILDINGS (TRACT NO. 39) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.21 REMOVAL BUILDINGS (TRACT NO. 41) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.22 REMOVAL BUILDINGS (TRACT NO. 42) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.23 REMOVAL BUILDINGS (TRACT NO. 44) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.24 REMOVAL BUILDINGS (TRACT NO. 45) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.25 REMOVAL BUILDINGS (TRACT NO. 46) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.26 REMOVAL BUILDINGS (TRACT NO. 47) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.27 REMOVAL BUILDINGS (TRACT NO. 49) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 11 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M06.28 REMOVAL BUILDINGS (TRACT NO. 51) LS 2 $1.00 $2.00 2.00 STATE $1.00 $2.00 2.00202M06.29 REMOVAL BLDG (TRACT NO. 142(OR LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M06.30 REMOVAL BUILDINGS (TRACT NO. 148) LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M06.31 REMOVAL BUILDINGS (TRACT NO. 42) LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M06.32 REMOVAL BUILDINGS (TRACT NO. 74) LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M06.33 REMOVAL BUILDINGS (TRACT NO. 78) LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M06.34 REMOVAL BUILDINGS (TRACT NO. 72) LS 2 $1.00 $1.00 1.00 STATE $1.00 $1.00 1.00202M08.01 REMOVAL OF ENDWALLS EACH 3 $83.33 $1,500.00 18.00 4 $425.00 $3,825.00 9.00 STATE $197.22 $5,325.00 27.00202M08.10 REMOVAL OF CURB (ASPHALT) m 2 $3.75 $675.00 180.00 3 $3.25 $97.50 30.00 STATE $3.68 $772.50 210.00202M08.20 REMOVAL OF CURB AND GUTTER m 2 $5.60 $672.00 120.00 STATE $5.60 $672.00 120.00202M10 REMOVAL BLDG AND OBSTRUCTIONS LS 2 $30,000.00 $30,000.00 1.00 STATE $30,000.00 $30,000.00 1.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 12 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY202M13 WATER WELL ABANDONMENT EACH 2 $1,200.00 $22,800.00 19.00 3 $1,480.00 $7,400.00 5.00 STATE $1,258.33 $30,200.00 24.00203-01 ROAD & DRN EXCAVATION (UNCLIFIED) C.Y. 1 $4.25 $571,568.72 134,459.00 2 $2.41 $4,059,556.81 1,684,664.50 3 $4.00 $2,129,391.58 532,551.00 4 $3.23 $540,394.40 167,063.00 STATE $2.90 $7,300,911.51 2,518,737.50203-01.05 EXCAVATION C.Y. 1 $47.25 $8,032.50 170.00 STATE $47.25 $8,032.50 170.00203-01.11 PRESPLITTING OF ROCK EXCAVATION S.Y. 3 $6.50 $3,653.00 562.00 STATE $6.50 $3,653.00 562.00203-01.51 TRENCHING L.F. 4 $1.76 $6,248.00 3,550.00 STATE $1.76 $6,248.00 3,550.00203-02 BORROW EXCAVATION (SOLID ROCK) C.Y. 2 $12.00 $67,320.00 5,610.00 3 $7.78 $111,040.00 14,270.00 STATE $8.97 $178,360.00 19,880.00203-02.01 BORROW EXC (GRADED SOLID ROCK) TON 1 $8.39 $141,408.50 16,862.00 3 $7.11 $378,640.50 53,247.00 4 $13.18 $123,072.00 9,336.00 STATE $8.10 $643,121.00 79,445.00203-02.02 BORROW EXC (GRADED SOLID ROCK) C.Y. 3 $50.00 $54,600.00 1,092.00 STATE $50.00 $54,600.00 1,092.00203-02.03 BORROW EXCAVATION (SOLID ROCK) TON 2 $4.60 $753,608.80 163,828.00 STATE $4.60 $753,608.80 163,828.00203-03 BORROW EXCAVATION (UNCLASSIFIED) C.Y. 1 $4.51 $151,828.60 33,655.00 2 $1.58 $727,844.57 460,095.00 3 $3.06 $2,547,199.62 832,546.00 4 $4.77 $259,686.90 54,415.00 STATE $2.67 $3,686,559.69 1,380,711.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 13 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY203-03.01 BORROW EXC (SELECT MATERIAL) C.Y. 3 $6.00 $26,188.75 4,363.00 STATE $6.00 $26,188.75 4,363.00203-04 PLACING AND SPREADING TOPSOIL C.Y. 1 $3.16 $24,690.50 7,825.00 2 $1.80 $192,476.75 107,144.00 3 $2.98 $151,359.20 50,759.00 4 $6.50 $2,470.00 380.00 STATE $2.23 $370,996.45 166,108.00203-05 UNDERCUTTING C.Y. 1 $4.79 $14,685.50 3,069.00 2 $5.00 $33,665.00 6,733.00 3 $1.78 $14,443.40 8,129.00 STATE $3.50 $62,793.90 17,931.00203-06 WATER M.G. * $11.41 $445.00 39.00 1 $5.30 $3,930.70 742.00 2 $5.08 $30,055.80 5,916.36 3 $3.06 $37,253.25 12,185.60 4 $3.02 $41,799.08 13,825.00 STATE $3.47 $113,483.83 32,707.96203-07 FURNISHING & SPREADING TOPSOIL C.Y. 1 $17.23 $24,090.00 1,398.00 2 $2.08 $39,432.00 18,945.00 3 $3.25 $63,722.50 19,593.00 4 $10.00 $180.00 18.00 STATE $3.19 $127,424.50 39,954.00203-08 CHANNEL EXCAVATION (UNCLASSIFIED) C.Y. 1 $6.44 $2,023.00 314.00 2 $6.59 $12,293.00 1,866.00 3 $6.21 $32,814.50 5,288.00 4 $10.00 $280.00 28.00 STATE $6.32 $47,410.50 7,496.00203-10 EMBANKMENT (COMPACTED IN PLACE) C.Y. 1 $1.00 $836.00 836.00 3 $3.03 $1,549,186.30 510,998.00 4 $6.04 $1,077,771.56 178,439.00 STATE $3.81 $2,627,793.86 690,273.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 14 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY203-15.03 COMPACTED CLAY C.Y. 3 $5.00 $80.00 16.00 STATE $5.00 $80.00 16.00203-40.10 TIE-BK ANCHS(PERMANENT SOIL ANCHS EACH 4 $10,000.00 $170,000.00 17.00 STATE $10,000.00 $170,000.00 17.00203M01 ROAD & DRN EXCAVATION (UNCLIFIED) m3 * $3.45 $301,409.25 87,365.00 1 $2.42 $7,180,951.34 2,965,863.00 2 $2.82 $9,940,272.92 3,521,864.00 3 $4.42 $2,385,854.45 539,908.00 4 $1.39 $447,106.48 321,782.00 STATE $2.72 $20,255,594.44 7,436,782.00203M01.11 PRESPLITTING OF ROCK EXCAVATION m2 2 $8.25 $25,987.50 3,150.00 STATE $8.25 $25,987.50 3,150.00203M02.01 BORROW EXC (GRADED SOLID ROCK) TONNE * $19.00 $16,416.00 864.00 1 $8.73 $452,220.35 51,821.00 2 $.84 $171,177.00 203,521.00 3 $10.98 $171,178.00 15,593.00 4 $16.92 $98,643.60 5,830.00 STATE $3.28 $909,634.95 277,629.00203M02.02 BORROW EXC (GRADED SOLID ROCK) m3 1 $23.50 $46,295.00 1,970.00 2 $23.00 $12,144.00 528.00 3 $6.40 $110,272.00 17,230.00 STATE $8.55 $168,711.00 19,728.00203M03 BORROW EXCAVATION (UNCLASSIFIED) m3 * $.60 $331,859.40 553,099.00 1 $3.67 $446,324.40 121,698.00 2 $4.74 $172,825.22 36,475.00 3 $6.48 $1,729,830.60 266,761.00 4 $5.31 $75,284.50 14,184.00 STATE $2.78 $2,756,124.12 992,217.00203M03.01 BORROW EXC (SELECT MATERIAL) m3 2 $12.79 $110,889.30 8,670.00 STATE $12.79 $110,889.30 8,670.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 15 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY203M03.03 BORROW EXCAVATION (UNCLASSIFIED) m3 4 $12.00 $21,600.00 1,800.00 STATE $12.00 $21,600.00 1,800.00203M04 PLACING AND SPREADING TOPSOIL m3 * $4.25 $34,833.00 8,196.00 1 $2.17 $127,271.76 58,727.00 2 $2.44 $382,620.53 157,092.00 3 $1.95 $69,936.90 35,820.00 4 $2.01 $37,295.04 18,566.00 STATE $2.34 $651,957.23 278,401.00203M05 UNDERCUTTING m3 1 $4.68 $354,204.60 75,713.00 3 $7.00 $26,761.00 3,823.00 STATE $4.79 $380,965.60 79,536.00203M06 WATER m3 * $.35 $13,674.85 39,071.00 1 $.32 $45,298.25 140,448.00 2 $.35 $72,995.56 209,471.00 3 $1.37 $21,581.60 15,711.00 4 $1.22 $18,335.56 15,042.00 STATE $.41 $171,885.82 419,743.00203M07 FURNISHING & SPREADING TOPSOIL m3 1 $5.36 $20,755.00 3,872.00 2 $7.47 $13,296.60 1,780.00 3 $18.42 $5,232.00 284.00 4 $1.30 $3,347.50 2,575.00 STATE $5.01 $42,631.10 8,511.00203M08 CHANNEL EXCAVATION (UNCLASSIFIED) m3 * $10.00 $5,300.00 530.00 1 $8.17 $42,188.00 5,162.00 2 $8.24 $8,457.72 1,027.00 3 $5.77 $46,908.70 8,127.00 4 $1.70 $2,242.10 1,317.00 STATE $6.50 $105,096.52 16,163.00204-01 CULVERT EXCAVATION (UNCLASSIFIED) C.Y. 2 $4.00 $728.00 182.00 STATE $4.00 $728.00 182.00204-02.01 DRY EXCAVATION (BRIDGES) C.Y. 1 $32.00 $41,440.00 1,295.00 2 $6.71 $10,166.00 1,514.00 3 $13.23 $83,612.20 6,319.00 4 $10.65 $119,612.00 11,232.00 STATE $12.52 $254,830.20 20,360.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 16 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY204-02.10 DRILLED CAISSON (EARTH) (30"DIA.) L.F. 3 $32.00 $14,400.00 450.00 4 $15.00 $56,160.00 3,744.00 STATE $16.82 $70,560.00 4,194.00204-02.15 DRILLED CAISSON (ROCK) (30" DIA.) L.F. 3 $270.00 $13,500.00 50.00 STATE $270.00 $13,500.00 50.00204-03.01 WET EXCAVATION (BRIDGES) C.Y. 1 $34.00 $35,564.00 1,046.00 2 $20.00 $1,060.00 53.00 3 $13.33 $16,700.00 1,253.00 4 $10.00 $10,340.00 1,034.00 STATE $18.80 $63,664.00 3,386.00204-04.01 ROCK EXCAVATION (BRIDGES) C.Y. 1 $35.00 $93,065.00 2,659.00 2 $9.44 $4,146.00 439.00 3 $104.62 $114,040.00 1,090.00 STATE $50.44 $211,251.00 4,188.00204-05 ROCK DRILLING (BRIDGES) L.F. 1 $75.00 $6,750.00 90.00 2 $20.38 $1,590.00 78.00 3 $14.15 $15,435.00 1,091.00 STATE $18.88 $23,775.00 1,259.00204-07 BEDDING MATERIAL (PIPE) CLASS B C.Y. 1 $18.13 $44,257.01 2,441.00 2 $25.01 $81,525.00 3,260.00 3 $19.97 $271,900.91 13,616.00 4 $14.76 $21,637.00 1,466.00 STATE $20.18 $419,319.92 20,783.00204-08 FOUNDATION FILL MATERIAL C.Y. 1 $35.91 $2,370.00 66.00 2 $39.98 $10,035.00 251.00 3 $19.35 $59,743.80 3,087.00 4 $39.85 $67,225.00 1,687.00 STATE $27.38 $139,373.80 5,091.00204-08.01 BACKFILL MATERIAL (FLOWABLE FILL) C.Y. 2 $100.06 $700.40 7.00 3 $71.87 $25,800.00 359.00 4 $105.00 $7,035.00 67.00 STATE $77.45 $33,535.40 433.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 17 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY204-11 BRIDGE EXCAVATION (UNCLASSIFIED) C.Y. 1 $9.28 $4,306.00 464.00 3 $12.00 $4,656.00 388.00 STATE $10.52 $8,962.00 852.00204M02.01 DRY EXCAVATION (BRIDGES) m3 * $3.00 $7,509.00 2,503.00 1 $11.37 $60,043.00 5,280.00 2 $11.00 $41,148.00 3,741.00 3 $25.42 $170,564.00 6,709.00 4 $8.93 $7,406.65 829.00 STATE $15.04 $286,670.65 19,062.00204M03.01 WET EXCAVATION (BRIDGES) m3 * $5.00 $3,560.00 712.00 1 $45.00 $67,225.00 1,494.00 3 $16.00 $23,488.00 1,468.00 STATE $25.66 $94,273.00 3,674.00204M04.01 ROCK EXCAVATION (BRIDGES) m3 * $50.00 $7,300.00 146.00 1 $85.62 $184,080.00 2,150.00 2 $60.00 $11,820.00 197.00 3 $59.00 $49,560.00 840.00 STATE $75.84 $252,760.00 3,333.00204M05 ROCK DRILLING (BRIDGES) m * $120.00 $6,960.00 58.00 1 $65.93 $21,360.00 324.00 2 $32.00 $2,752.00 86.00 3 $45.00 $1,575.00 35.00 STATE $64.90 $32,647.00 503.00204M07 BEDDING MATERIAL (PIPE) CLASS B m3 * $18.50 $47,304.50 2,557.00 1 $21.87 $420,674.00 19,238.00 2 $21.99 $383,112.78 17,423.00 3 $25.18 $264,325.20 10,497.00 4 $13.38 $12,278.70 918.00 STATE $22.27 $1,127,695.18 50,633.00204M08 FOUNDATION FILL MATERIAL m3 * $30.00 $5,550.00 185.00 1 $21.21 $29,393.30 1,386.00 2 $29.97 $23,467.02 783.00 3 $32.01 $26,759.00 836.00 4 $30.33 $3,276.00 108.00 STATE $26.82 $88,445.32 3,298.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 18 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY204M08.01 BACKFILL MATERIAL (FLOWABLE FILL) m3 1 $200.00 $2,400.00 12.00 4 $125.00 $17,125.00 137.00 STATE $131.04 $19,525.00 149.00204M09.01 CFFRDM (PIER NO 7) (S 1+371.000) LS 1 $150,000.00 $150,000.00 1.00 3 $431,000.00 $431,000.00 1.00 STATE $290,500.00 $581,000.00 2.00204M09.02 CFFRDM (PIER NO 8) (S 1+478.000) LS 1 $150,000.00 $150,000.00 1.00 STATE $150,000.00 $150,000.00 1.00204M09.03 CFFRDM (PIER NO 9) (S 1+585.000) LS 1 $150,000.00 $150,000.00 1.00 STATE $150,000.00 $150,000.00 1.00204M09.04 CFFRDM (PIER NO 10) (S 1+692.000) LS 1 $150,000.00 $150,000.00 1.00 STATE $150,000.00 $150,000.00 1.00204M10.01 F PREP(BENT NO 2)(STA 10+266.277) LS * $14,000.00 $14,000.00 1.00 1 $7,666.67 $23,000.00 3.00 STATE $9,250.00 $37,000.00 4.00204M10.02 F PREP(PIER NO 1)(STA 5+205.000) LS * $13,000.00 $13,000.00 1.00 1 $7,666.67 $23,000.00 3.00 STATE $9,000.00 $36,000.00 4.00204M10.03 F PREP(PIER NO 2)(STA 5+227.000) LS * $13,000.00 $13,000.00 1.00 1 $9,500.00 $19,000.00 2.00 STATE $10,666.67 $32,000.00 3.00204M10.04 F PREP(PIER NO 4)(STA 13+417) LS 1 $9,500.00 $19,000.00 2.00 STATE $9,500.00 $19,000.00 2.00204M11 BRIDGE EXCAVATION (UNCLASSIFIED) m3 2 $4.00 $1,896.00 474.00 STATE $4.00 $1,896.00 474.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 19 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY204M14 CORE DRILLING FOR PILES (ROCK) m 1 $149.54 $9,720.00 65.00 STATE $149.54 $9,720.00 65.00204M15 CORE DRILLING FOR PILES (SOIL) m 1 $131.23 $17,060.00 130.00 STATE $131.23 $17,060.00 130.00206-01 FINAL DRESSING STA. 1 $170.69 $4,950.00 29.00 2 $150.00 $33,600.00 224.00 3 $333.08 $71,612.50 215.00 STATE $235.39 $110,162.50 468.00206M01 FINAL DRESSING STA 1 $1,445.19 $27,025.00 18.70 2 $6,173.16 $95,683.95 15.50 3 $574.34 $14,364.15 25.01 STATE $2,315.03 $137,073.10 59.21207M01 SUBGRADE CNSTR & PREPARATION STA 4 $4,500.00 $16,200.00 3.60 STATE $4,500.00 $16,200.00 3.60208-01 SHOULDERS AND DITCHES LIN. MI. 1 $590.87 $266,247.50 450.60 STATE $590.87 $266,247.50 450.60208-01.01 DITCHES L.F. 2 $1.26 $3,660.00 2,900.00 3 $1.50 $5,550.00 3,700.00 STATE $1.40 $9,210.00 6,600.00209-01 TEMPORARY BERM L.F. 1 $.27 $2,181.80 8,208.00 2 $.10 $5,662.60 56,626.00 3 $.24 $8,606.44 35,969.00 4 $.33 $10,393.45 31,823.00 STATE $.20 $26,844.29 132,626.00209-01.20 EROS & SEDIMENT CTRL SUPERVISOR DAY 2 $500.83 $180,800.00 361.00 STATE $500.83 $180,800.00 361.00209-02 TEMPORARY SLOPE DRAIN L.F. 3 $8.79 $2,882.00 328.00 STATE $8.79 $2,882.00 328.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 20 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209-02.02 6" TEMPORARY SLOPE DRAIN L.F. 3 $1.50 $631.50 421.00 STATE $1.50 $631.50 421.00209-02.03 8" TEMPORARY SLOPE DRAIN L.F. 1 $8.39 $5,968.00 711.00 2 $4.94 $10,960.00 2,218.00 3 $4.78 $1,720.00 360.00 4 $4.00 $440.00 110.00 STATE $5.62 $19,088.00 3,399.00209-02.05 12" TEMPORARY SLOPE DRAIN L.F. 2 $6.00 $7,812.00 1,302.00 3 $6.48 $15,802.50 2,439.00 4 $5.00 $15,470.00 3,094.00 STATE $5.72 $39,084.50 6,835.00209-02.06 15" TEMPORARY SLOPE DRAIN L.F. 2 $11.82 $1,950.00 165.00 3 $6.00 $696.00 116.00 STATE $9.42 $2,646.00 281.00209-02.07 18" TEMPORARY SLOPE DRAIN L.F. 1 $18.35 $6,074.00 331.00 2 $13.00 $2,119.00 163.00 3 $14.85 $13,114.00 883.00 STATE $15.47 $21,307.00 1,377.00209-03 CHECK DAMS S.F. 1 $8.41 $824.40 98.00 2 $3.93 $19,060.00 4,848.00 3 $1.64 $8,595.25 5,241.00 STATE $2.80 $28,479.65 10,187.00209-05 SEDIMENT REMOVAL C.Y. 1 $1.81 $2,323.10 1,285.00 2 $3.23 $28,351.00 8,769.00 3 $2.38 $36,341.80 15,298.00 4 $3.43 $13,620.00 3,974.00 STATE $2.75 $80,635.90 29,326.00209-06 BALED HAY OR STRAW EROSION CHECKS BALE 1 $6.38 $9,212.50 1,444.00 2 $3.99 $16,992.75 4,258.00 3 $5.89 $54,397.05 9,238.00 4 $5.35 $3,919.00 733.00 STATE $5.39 $84,521.30 15,673.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 21 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209-07 DUMPED ROCK C.Y. 1 $28.46 $1,480.00 52.00 3 $20.59 $10,539.55 512.00 4 $33.50 $10,720.00 320.00 STATE $25.72 $22,739.55 884.00209-07.01 DUMPED ROCK TON 1 $17.69 $1,150.00 65.00 3 $13.37 $2,073.00 155.00 STATE $14.65 $3,223.00 220.00209-08 TEMPORARY SILT FENCES L.F. 1 $1.92 $47,193.90 24,609.00 2 $1.44 $81,110.25 56,372.00 3 $.86 $132,938.95 154,202.00 4 $2.40 $123,702.70 51,623.00 STATE $1.34 $384,945.80 286,806.00209-08.01 TEMPORARY FILTER BARRIER L.F. 1 $.88 $420.00 480.00 2 $2.02 $3,173.20 1,568.00 3 $1.34 $38,588.15 28,835.00 4 $2.00 $23,123.00 11,542.00 STATE $1.54 $65,304.35 42,425.00209-08.03 TEMPORARY SILTFNC (WITHOUT BKING) L.F. 1 $1.17 $2,100.00 1,800.00 2 $2.27 $2,180.00 960.00 3 $1.46 $29,430.25 20,143.00 4 $1.50 $225.00 150.00 STATE $1.47 $33,935.25 23,053.00209-08.10 TSDMT FLTR BG(14.6'x 2.0'x 13.3') EACH 1 $950.00 $11,400.00 12.00 2 $144.44 $2,600.00 18.00 3 $296.92 $3,860.00 13.00 4 $450.00 $9,000.00 20.00 STATE $426.35 $26,860.00 63.00209-09.01 SANDBAGS BAG 1 $5.00 $2,750.00 550.00 2 $.84 $8,174.00 9,708.00 3 $2.93 $14,421.00 4,922.00 4 $7.00 $7,350.00 1,050.00 STATE $2.01 $32,695.00 16,230.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 22 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209-09.02 T.SEDIMT FLTR BG(14'6"X2'0"X13'3" BAG 2 $450.00 $2,700.00 6.00 STATE $450.00 $2,700.00 6.00209-10.01 SED TRAP(ABV GND)(3.0'X 50'X 53') EACH 3 $121.21 $12,969.50 107.00 STATE $121.21 $12,969.50 107.00209-10.10 SEDIMENT TRAP(30x15x4') EACH 1 $1,050.00 $2,100.00 2.00 3 $500.00 $500.00 1.00 STATE $866.67 $2,600.00 3.00209-10.20 TEMPORARY SEDIMENT TRAP C.Y. 3 $3.35 $2,260.00 674.00 STATE $3.35 $2,260.00 674.00209-20.03 POLYETHYLENE SHEETING (6 MIL) S.Y. 1 $2.94 $2,431.50 828.00 2 $2.15 $3,000.00 1,395.00 3 $1.44 $3,997.25 2,783.00 4 $.82 $1,036.00 1,260.00 STATE $1.67 $10,464.75 6,266.00209M01 TEMPORARY BERM m * $.10 $3,152.29 33,182.00 1 $.12 $3,496.50 28,460.00 2 $.18 $10,871.95 58,769.00 3 $.14 $1,983.45 14,655.00 4 $.39 $1,546.35 3,965.00 STATE $.15 $21,050.54 139,031.00209M01.20 EROS & SEDIMENT CTRL SUPERVISOR DAY 2 $425.00 $306,000.00 720.00 STATE $425.00 $306,000.00 720.00209M02 TEMPORARY SLOPE DRAIN m 3 $.25 $56.00 224.00 STATE $.25 $56.00 224.00209M02.01 100 mm TEMPORARY SLOPE DRAIN m * $2.00 $2,300.00 1,150.00 2 $16.00 $160.00 10.00 STATE $2.12 $2,460.00 1,160.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 23 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209M02.02 150 mm TEMPORARY SLOPE DRAIN m * $4.00 $3,428.00 857.00 1 $31.00 $3,348.00 108.00 2 $18.00 $810.00 45.00 STATE $7.51 $7,586.00 1,010.00209M02.03 200 mm TEMPORARY SLOPE DRAIN m * $4.50 $2,335.50 519.00 1 $13.83 $8,420.00 609.00 2 $16.26 $12,863.06 791.00 3 $11.07 $564.40 51.00 STATE $12.28 $24,182.96 1,970.00209M02.04 250 mm TEMPORARY SLOPE DRAIN m 2 $24.00 $4,560.00 190.00 STATE $24.00 $4,560.00 190.00209M02.05 300 mm TEMPORARY SLOPE DRAIN m 1 $20.23 $31,116.00 1,538.00 2 $23.90 $27,601.50 1,155.00 3 $15.90 $636.00 40.00 4 $23.13 $15,150.15 655.00 STATE $21.99 $74,503.65 3,388.00209M02.06 375 mm TEMPORARY SLOPE DRAIN m 2 $35.17 $9,919.25 282.00 3 $25.43 $788.35 31.00 STATE $34.21 $10,707.60 313.00209M02.07 450mmTEMPORARY SLOPE DRAIN m 1 $40.00 $3,000.00 75.00 2 $35.98 $18,784.00 522.00 STATE $36.49 $21,784.00 597.00209M03 CHECK DAMS m2 1 $2.59 $2,021.35 780.00 2 $5.30 $21,260.80 4,015.00 STATE $4.86 $23,282.15 4,795.00209M05 SEDIMENT REMOVAL m3 * $.92 $2,526.32 2,746.00 1 $.76 $17,675.10 23,307.00 2 $2.46 $39,384.04 15,993.00 3 $5.53 $21,143.90 3,822.00 4 $1.82 $3,195.80 1,754.00 STATE $1.76 $83,925.16 47,622.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 24 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209M06 BALED HAY OR STRAW EROSION CHECKS BALE * $3.00 $1,800.00 600.00 1 $5.05 $101,867.10 20,174.00 2 $4.61 $78,652.22 17,044.00 3 $2.82 $53,181.50 18,887.00 4 $6.52 $7,820.00 1,200.00 STATE $4.20 $243,320.82 57,905.00209M07 DUMPED ROCK m3 1 $31.67 $23,595.00 745.00 2 $19.49 $1,189.00 61.00 3 $21.08 $55,783.00 2,646.00 4 $58.50 $351.00 6.00 STATE $23.40 $80,918.00 3,458.00209M07.01 DUMPED ROCK TONNE 1 $20.00 $360.00 18.00 2 $14.19 $78,480.00 5,532.00 3 $18.00 $4,860.00 270.00 4 $21.82 $763.70 35.00 STATE $14.43 $84,463.70 5,855.00209M08 TEMPORARY SILT FENCES m * $1.50 $41,535.00 27,690.00 1 $3.32 $146,057.56 43,983.00 2 $1.39 $167,870.19 120,502.00 3 $.46 $26,648.48 57,406.00 4 $3.97 $25,254.67 6,369.00 STATE $1.59 $407,365.90 255,950.00209M08.01 TEMPORARY FILTER BARRIER m 1 $10.00 $250.00 25.00 3 $2.67 $26,850.00 10,050.00 4 $3.30 $1,963.50 595.00 STATE $2.72 $29,063.50 10,670.00209M08.02 TEMPORARY SILT FENCE (WITH BKING) m 1 $7.75 $155,775.00 20,100.00 3 $17.00 $1,241.00 73.00 STATE $7.78 $157,016.00 20,173.00209M08.03 TEMPORARY SILTFNC (WITHOUT BKING) m 1 $4.00 $2,880.00 720.00 2 $3.39 $13,275.24 3,916.00 3 $4.95 $2,623.50 530.00 STATE $3.64 $18,778.74 5,166.00

AVERAGE UNIT PRICE REPORT STUDY PERIOD 01/01/01 - 12/31/01 PAGE 25 ITEM DESCRIPTION UNIT OF REGION AVERAGE TOTAL TOTAL NUMBER MEASURE UNIT PRICE COST QUANTITY209M08.10 T. SED FLTR BG(4.42mX0.61mX4.039m EACH * $100.00 $2,300.00 23.00 1 $629.27 $25,800.00 41.00 2 $584.19 $28,041.28 48.00 3 $628.57 $4,400.00 7.00 4 $250.00 $500.00 2.00 STATE $504.47 $61,041.28 121.00209M09.01 SANDBAGS BAG * $.11 $444.18 4,038.00 1 $5.00 $5,000.00 1,000.00